Make your own TD04 turbo manifold flange for DIY turbo manifolds with these DXF cut files. 

Two files versions are included, a clearance hole version and a tapped hole version; the tapped hole version requires you to drill out the holes to your desired size and tap the threads.

You cut the turbo flange from your desired material thickness, 3/8" - 1/2" (10mm-12mm) material is recommended.